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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The ACF Onyx Poll plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u2018class\u2019 parameter in all versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El complemento ACF Onyx Poll para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del par\u00e1metro 'class' en todas las versiones hasta la 1.1.9 incluida, debido a una depuraci\u00f3n de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de colaborador o superior, inyectar scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n al acceder un usuario a una p\u00e1gina inyectada."}], "id": "CVE-2025-5841", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2025-06-13T03:15:52.457", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/acf-onyx-poll/tags/1.1.8/onyx-poll.php"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/acf-onyx-poll/tags/1.2.0/onyx-poll.php#L63"}, {"source": "security@wordfence.com", "url": "https://wordpress.org/plugins/acf-onyx-poll/#developers"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9f4302f8-e9da-436f-9b4b-d01d3dbe9f31?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-21T20:18:29.142553+00:00", "value": {"mitigation_remediation": ["Upgrade the ACF Onyx Poll plugin to version 1.2.0 or newer to eliminate the unsanitized class handling.", "Remove or disable the poll block on sites where it is not required to reduce exposure.", "If upgrading is not immediately possible, consult a security team to evaluate whether poll content can be removed or the class field sanitized."], "summary": {"action": "Immediate Patch", "impact": "Stored Cross\u2011Site Scripting (XSS)"}, "threat_synthesis": {"affected_systems": "The flaw affects the ACF Onyx Poll plugin produced by Andremacola, used on any WordPress installation. All releases up to and including version 1.1.9 are vulnerable. WordPress sites that have installed these versions, and have users with Contributor or higher roles, are impacted.", "description_and_impact": "In the ACF Onyx Poll WordPress plugin, the class parameter is not properly sanitized or escaped before being stored. An authenticated author with Contributor level or higher can place arbitrary JavaScript into the poll content. When another site visitor accesses the poll page, the injected script runs in their browser, enabling session hijacking, data theft, or defacement. The vulnerability is a classic stored XSS flaw (CWE\u201179).", "risk_and_exploitability": "With a CVSS score of 6.4, this vulnerability is moderate but still noteworthy. The EPSS score of less than 1\u202f% signals that exploitation is currently rare, and the flaw is not listed in the CISA KEV catalog. Attackers must have login credentials and a role of Contributor or above, which is easier to obtain than administrative rights. Once a poll page is viewed, any user in the browser receives the injected code, creating a widespread exposure. Even though the exploit probability is low, the potential for user session compromise and defacement warrants prompt attention."}}}}, "created": "2026-04-21T20:30:27.394955+00:00", "updated": "2026-04-21T20:30:27.394965+00:00", "vendors": []}